We present measurements for elastic (angular straggling) and inelastic scattering (energy loss) of low energy electrons (1633 eV) after penetration through thin carbon foils. The resulting double differential electron spectra are compared to calculations of the electronic energy loss in a linear response approximation. The multiple elastic scattering of the electrons is treated in the first Born approximation for scattering on a screened Coulomb potential. With the derived cross sections for inelastic and elastic scattering the transport of convoy electrons through thin foils is simulated. The calculations show that with the assumption of continuous production of convoy electrons during the passage of the ion through the solid the remaining convoy electron peak can be understood. It will be shown that under these conditions the effect of multiple elastic scattering can be neglected, whereas the inelastic contributions cause a change in the peak shape.
ASJC Scopus subject areas
- Nuclear and High Energy Physics